Verbal Reasoning - Mental Ability Questions

Select the related word/letters/number from the given alternatives.

ADFG : KNPQ :: DGIJ : ?

Choose the related word/letters/number from the given alternatives.

Seismology : Earthquake :: Hydrology : ?

Select the related word/letters/number from the given alternatives.

QC : T : : SF : ?

If the first and second letters in the word DEPRESSION' were interchanged, also the third and the fourth letters, the fifth and the sixth letters and so on, which of the following would be the seventh letter from the right ?

Select the related word/letters/numbers from the given alternatives:

DCBA : WXYS :: IJKL : ?

Find the next number in the series given 18, 90, 450, 2250, ?

Which of the following terms follows the trend of the given list?

ABCABABAB, ABABCABAB, ABABABCAB, ABABABABC, ACBABABAB, _______________.

Select the related word/letters/number from the given alternatives.

Honest : Truthful : : Obdurate : ?